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// Copyright 2014 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.rules.cpp;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
/**
* A structured representation of the compilation outputs of a C++ rule.
*/
public class CcCompilationOutputs {
/**
* All .o files built by the target.
*/
private final ImmutableList<Artifact> objectFiles;
/**
* All .pic.o files built by the target.
*/
private final ImmutableList<Artifact> picObjectFiles;
/**
* All .dwo files built by the target, corresponding to .o outputs.
*/
private final ImmutableList<Artifact> dwoFiles;
/**
* All .pic.dwo files built by the target, corresponding to .pic.o outputs.
*/
private final ImmutableList<Artifact> picDwoFiles;
/**
* All artifacts that are created if "--save_temps" is true.
*/
private final NestedSet<Artifact> temps;
/**
* All token .h.processed files created when preprocessing or parsing headers.
*/
private final ImmutableList<Artifact> headerTokenFiles;
private final List<IncludeScannable> lipoScannables;
private CcCompilationOutputs(ImmutableList<Artifact> objectFiles,
ImmutableList<Artifact> picObjectFiles, ImmutableList<Artifact> dwoFiles,
ImmutableList<Artifact> picDwoFiles, NestedSet<Artifact> temps,
ImmutableList<Artifact> headerTokenFiles,
ImmutableList<IncludeScannable> lipoScannables) {
this.objectFiles = objectFiles;
this.picObjectFiles = picObjectFiles;
this.dwoFiles = dwoFiles;
this.picDwoFiles = picDwoFiles;
this.temps = temps;
this.headerTokenFiles = headerTokenFiles;
this.lipoScannables = lipoScannables;
}
/**
* Returns whether this set of outputs has any object or .pic object files.
*/
public boolean isEmpty() {
return picObjectFiles.isEmpty() && objectFiles.isEmpty();
}
/**
* Returns an unmodifiable view of the .o or .pic.o files set.
*
* @param usePic whether to return .pic.o files
*/
public ImmutableList<Artifact> getObjectFiles(boolean usePic) {
return usePic ? picObjectFiles : objectFiles;
}
/**
* Returns an unmodifiable view of the .dwo files set.
*/
public ImmutableList<Artifact> getDwoFiles() {
return dwoFiles;
}
/**
* Returns an unmodifiable view of the .pic.dwo files set.
*/
public ImmutableList<Artifact> getPicDwoFiles() {
return picDwoFiles;
}
/**
* Returns an unmodifiable view of the temp files set.
*/
public NestedSet<Artifact> getTemps() {
return temps;
}
/**
* Returns an unmodifiable view of the .h.processed files.
*/
public Iterable<Artifact> getHeaderTokenFiles() {
return headerTokenFiles;
}
/**
* Returns the {@link IncludeScannable} objects this C++ compile action contributes to a
* LIPO context collector.
*/
public List<IncludeScannable> getLipoScannables() {
return lipoScannables;
}
public static final class Builder {
private final Set<Artifact> objectFiles = new LinkedHashSet<>();
private final Set<Artifact> picObjectFiles = new LinkedHashSet<>();
private final Set<Artifact> dwoFiles = new LinkedHashSet<>();
private final Set<Artifact> picDwoFiles = new LinkedHashSet<>();
private final NestedSetBuilder<Artifact> temps = NestedSetBuilder.stableOrder();
private final Set<Artifact> headerTokenFiles = new LinkedHashSet<>();
private final List<IncludeScannable> lipoScannables = new ArrayList<>();
public CcCompilationOutputs build() {
return new CcCompilationOutputs(ImmutableList.copyOf(objectFiles),
ImmutableList.copyOf(picObjectFiles), ImmutableList.copyOf(dwoFiles),
ImmutableList.copyOf(picDwoFiles), temps.build(),
ImmutableList.copyOf(headerTokenFiles),
ImmutableList.copyOf(lipoScannables));
}
public Builder merge(CcCompilationOutputs outputs) {
this.objectFiles.addAll(outputs.objectFiles);
this.picObjectFiles.addAll(outputs.picObjectFiles);
this.dwoFiles.addAll(outputs.dwoFiles);
this.picDwoFiles.addAll(outputs.picDwoFiles);
this.temps.addTransitive(outputs.temps);
this.headerTokenFiles.addAll(outputs.headerTokenFiles);
this.lipoScannables.addAll(outputs.lipoScannables);
return this;
}
/**
* Adds an .o file.
*/
public Builder addObjectFile(Artifact artifact) {
objectFiles.add(artifact);
return this;
}
public Builder addObjectFiles(Iterable<Artifact> artifacts) {
Iterables.addAll(objectFiles, artifacts);
return this;
}
/**
* Adds a .pic.o file.
*/
public Builder addPicObjectFile(Artifact artifact) {
picObjectFiles.add(artifact);
return this;
}
public Builder addPicObjectFiles(Iterable<Artifact> artifacts) {
Iterables.addAll(picObjectFiles, artifacts);
return this;
}
public Builder addDwoFile(Artifact artifact) {
dwoFiles.add(artifact);
return this;
}
public Builder addPicDwoFile(Artifact artifact) {
picDwoFiles.add(artifact);
return this;
}
/**
* Adds temp files.
*/
public Builder addTemps(Iterable<Artifact> artifacts) {
temps.addAll(artifacts);
return this;
}
public Builder addHeaderTokenFile(Artifact artifact) {
headerTokenFiles.add(artifact);
return this;
}
/**
* Adds an {@link IncludeScannable} that this compilation output object contributes to a
* LIPO context collector.
*/
public Builder addLipoScannable(IncludeScannable scannable) {
lipoScannables.add(scannable);
return this;
}
}
}
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